/* $NetBSD: if_ath_pci.c,v 1.7 2004/06/30 05:58:17 mycroft Exp $ */ /*- * Copyright (c) 2002-2004 Sam Leffler, Errno Consulting * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any * redistribution must be conditioned upon including a substantially * similar Disclaimer requirement for further binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGES. */ #include #ifdef __FreeBSD__ __FBSDID("$FreeBSD: src/sys/dev/ath/if_ath_pci.c,v 1.8 2004/04/02 23:57:10 sam Exp $"); #endif #ifdef __NetBSD__ __KERNEL_RCSID(0, "$NetBSD: if_ath_pci.c,v 1.7 2004/06/30 05:58:17 mycroft Exp $"); #endif /* * PCI/Cardbus front-end for the Atheros Wireless LAN controller driver. */ #include "opt_inet.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #endif #include #include #include <../contrib/sys/dev/ic/athhal.h> #include #include #include #include /* * PCI glue. */ struct ath_pci_softc { struct ath_softc sc_sc; #ifdef __FreeBSD__ struct resource *sc_sr; /* memory resource */ struct resource *sc_irq; /* irq resource */ #else pci_chipset_tag_t sc_pc; #endif void *sc_ih; /* intererupt handler */ u_int8_t sc_saved_intline; u_int8_t sc_saved_cachelinesz; u_int8_t sc_saved_lattimer; }; #define BS_BAR 0x10 static int ath_pci_match(struct device *, struct cfdata *, void *); static void ath_pci_attach(struct device *, struct device *, void *); static void ath_pci_shutdown(void *); static int ath_pci_detach(struct device *, int); CFATTACH_DECL(ath_pci, sizeof(struct ath_pci_softc), ath_pci_match, ath_pci_attach, ath_pci_detach, NULL); /* * translate some product code. it is a workaround until HAL gets updated. */ static u_int16_t ath_product(pcireg_t pa_id) { u_int16_t prodid; prodid = PCI_PRODUCT(pa_id); switch (prodid) { case 0x1014: /* IBM 31P9702 minipci a/b/g card */ prodid = PCI_PRODUCT_ATHEROS_AR5212; break; default: break; } return prodid; } static int ath_pci_match(struct device *parent, struct cfdata *match, void *aux) { const char* devname; struct pci_attach_args *pa = aux; pci_vendor_id_t vendor; vendor = PCI_VENDOR(pa->pa_id); /* XXX HACK until HAL is updated. */ if (vendor == 0x128c) vendor = PCI_VENDOR_ATHEROS; devname = ath_hal_probe(vendor, ath_product(pa->pa_id)); if (devname) return 1; return 0; } static void ath_pci_attach(struct device *parent, struct device *self, void *aux) { struct ath_pci_softc *psc = (struct ath_pci_softc *)self; struct ath_softc *sc = &psc->sc_sc; u_int32_t res; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; bus_space_tag_t iot; bus_space_handle_t ioh; pci_intr_handle_t ih; void *hook; const char *intrstr = NULL; psc->sc_pc = pc; pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE); res = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); if ((res & PCI_COMMAND_MEM_ENABLE) == 0) { aprint_error("couldn't enable memory mapping\n"); goto bad; } if ((res & PCI_COMMAND_MASTER_ENABLE) == 0) { aprint_error("couldn't enable bus mastering\n"); goto bad; } /* * Setup memory-mapping of PCI registers. */ if (pci_mapreg_map(pa, BS_BAR, PCI_MAPREG_TYPE_MEM, 0, &iot, &ioh, NULL, NULL)) { aprint_error("cannot map register space\n"); goto bad; } sc->sc_st = iot; sc->sc_sh = ioh; sc->sc_invalid = 1; /* * Arrange interrupt line. */ if (pci_intr_map(pa, &ih)) { aprint_error("couldn't map interrupt\n"); goto bad1; } intrstr = pci_intr_string(pc, ih); psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ath_intr, sc); if (psc->sc_ih == NULL) { aprint_error("couldn't map interrupt\n"); goto bad2; } printf("\n"); printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); sc->sc_dmat = pa->pa_dmat; hook = shutdownhook_establish(ath_pci_shutdown, psc); if (hook == NULL) { aprint_error("couldn't make shutdown hook\n"); goto bad3; } if (ath_attach(ath_product(pa->pa_id), sc) == 0) return; shutdownhook_disestablish(hook); bad3: pci_intr_disestablish(pc, psc->sc_ih); bad2: /* XXX */ bad1: /* XXX */ bad: return; } static int ath_pci_detach(struct device *self, int flags) { struct ath_pci_softc *psc = (struct ath_pci_softc *)self; ath_detach(&psc->sc_sc); pci_intr_disestablish(psc->sc_pc, psc->sc_ih); return (0); } static void ath_pci_shutdown(void *self) { struct ath_pci_softc *psc = (struct ath_pci_softc *)self; ath_shutdown(&psc->sc_sc); }